Sou Hu Cai Jing·2026-01-07 17:42Market Overview - The three major A-share indices experienced a slight increase on January 7, with total trading volume in the Shanghai and Shenzhen markets reaching 2.88 trillion yuan, an increase of over 49 billion yuan compared to the previous day [1] - More than 2,100 stocks closed higher, with notable gains in sectors such as storage chips, state-owned capital holdings, and advanced packaging [1] Historical Highs - A total of 99 stocks reached their historical closing highs, excluding newly listed stocks from the past year. The electronics, machinery equipment, and non-ferrous metals sectors had the highest concentration of stocks hitting new highs, with 27, 13, and 11 stocks respectively [1] - The average increase for stocks that reached historical highs was 7.25%, with stocks like Shaoyang Hydraulic, Meihua Medical, and Nanda Optoelectronics hitting the daily limit [1] Top Gainers - The top gainers among stocks that reached historical highs included: - Shaoyang Hydraulic (41.33 yuan, +20.01%) - Meihua Medical (41.56 yuan, +20.01%) - Andar Intelligent (170.08 yuan, +20.00%) - Nanda Optoelectronics (55.19 yuan, +20.00%) [2] Institutional Activity - In the market, 17 stocks were net bought by institutions, with five stocks seeing net purchases exceeding 1 billion yuan. Notably, Sanbo Brain Science and Shunhao Co. received over 2 billion yuan in net purchases [2] - Conversely, Jin Feng Technology faced the highest net sell-off by institutions, amounting to over 400 million yuan, followed by Meihua Medical and Chip Source Micro with net sells of 371 million yuan and 241 million yuan respectively [3] Northbound Capital Flow - Northbound funds saw net purchases in 14 stocks, with Nanda Optoelectronics, Sanbo Brain Science, and Lei Ke Defense leading with amounts exceeding 1 billion yuan [4] - On the sell side, Jin Feng Technology topped the list with a net sell amount of 92.58 million yuan, followed by Yunhan Chip City and Shunhao Co. with net sells exceeding 40 million yuan [5] Company Announcements - Zhongke Lanyun (688332) projected a net profit increase of 366.51% to 376.51% for 2025, driven by significant growth in the fair value of investments in Moer Thread and Muxi Co. [7] - Su Meida plans to acquire a 16.92% stake in Blue Science High-Tech to achieve control [7] - Baomo Co. is planning a change in control by its actual controller [7] - Puli Te's LCP film products are suitable for use as flexible electrode materials in brain-computer interfaces [7] - Chuanjin Nuo expects a net profit increase of 144.24% to 172.64% for 2025 [7]